These are extremely troubling scenes.
Saturday's League One game between Millwall and Peterborough United was the setting for worrying fan behaviour, as Millwall supporters appeared to fight amongst themselves, and seemingly throw punches at surrounded police officers.
Footage shows the home fans surround two law enforcers and apparently rain down blows upon them, as they try and break up fighting between fellow Lions' fans during their side's 3-0 victory.
https://twitter.com/footbilly/status/701079477783285760
https://twitter.com/BBCCambsSport/status/701064019441016832
It appears that the police officers involved in the melee were caught in the 'crossfire' of Millwall fans exchanging blows with each other.
None of the footage seems to suggest that any Posh fans were involved in the incident.
